Den Sun, 26 Apr 2009 14:04:47 +0100, skrev Phil Thompson: > On Sun, 26 Apr 2009 14:46:14 +0200, Marco Bizzarri > <marco.bizza...@gmail.com> wrote: >> On Sun, Apr 26, 2009 at 12:38 PM, Joacim Thomassen >> <joa...@net.homelinux.org> wrote: >>> Den Sat, 25 Apr 2009 23:47:57 +0200, skrev Marco Bizzarri: >>> >>> >>> Hello Marco, >>> >>> python's fcntl() call the regular C fcntl() function and as stated in > the >>> manual pages for C fcntl: >>> >>> ----------- Snippet from fcntl man pages ---------------- >>> >>> File and directory change notification (dnotify) >>> F_NOTIFY (long) >>> (Linux 2.4 onwards) Provide notification when the >>> directory referred to by fd or any of > the >>> files that it >>> contains is changed. The events to >>> be notified are >>> specified in arg, which is a bit mask specified by >>> ORing >>> together zero or more of the following >>> bits: >>> >>> DN_MODIFY A file was modified (write, pwrite, >>> writev, >>> >>> truncate, ftruncate). >>> ------------- End snippet of fcntl man pages ------------------- >>> >>> The fact that my program actually trigger a signal as the monitored >>> directoy's image.jpg file change confirm that this part of the code do >>> work. I do get "Change happened!" as i manually do a "cp another.jpg >>> image.jpg", but this action is first seen after I close my application >>> window. (I do not get "Change happened!" if I don't do my manual cp >>> command. :-) ) >>> >>> Personaly I believe this has something to do with the GUI/Qt4 part >>> that > I >>> have not understood. Something about how a widget repaint itself or >>> something in that direction. >>> >>> Best regards, >>> Joacim >>> -- >>> http://mail.python.org/mailman/listinfo/python-list >>> >>> >> >> You're right: I've found the following answer googling: >> >> http://mail.python.org/pipermail/python-list/2007-February/597617.html >> >> >> indeed, addind a startTimer() to your code, makes it works ;). > > Alternatively, use QFileSystemWatcher instead. > > Phil
Thanks Phil, I'll have a look at the QFileSystemWatcher later for a more sound code. Joacim -- http://mail.python.org/mailman/listinfo/python-list
